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Опубликовано
2009-03-10
Опубликовано на SciPeople2009-11-10 11:12:52
ЖурналActa Paleontologica Polonica
New specimens of zygodactylid birds from the middle Eocene of Messel, with description of a new species of Primozygodactylus.
Acta Palaeontologica Polonica, 2009. 54 (1): 15–20.
Аннотация
Representatives of the avian taxon Zygodactylidae are among the most abundant small arboreal birds in the early
Palaeogene of the Northern Hemisphere. Still, however, the osteology of these birds, which have recently been shown to be
the sister taxon of the Passeriformes, is only incompletely known. Here we describe a new species of Primozygodactylus
from the middle Eocene ofMessel in Germany. The holotype specimen of P. eunjooae sp. nov. for the first time allows a de−
tailed examination of the distal tarsometatarsus in one of the Messel zygodactylids. It also exhibits exceptionally well−pre−
served tail feathers which,most notably, are formed by a long central pair of rectrices.We further report on a new specimen
of Primozygodactylus major, which is the largest zygodactylid from Messel. Being one of the few dissociated skeletons of
Primozygodactylus, the new specimen shows some previously unknown osteological features of this taxon and allows a
more detailed comparison with other zygodactylids.
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